Stop work, secure the area when practical, and notify the supervisor when an assignment presents an imminent hazard, requires training or equipment not provided, exceeds demonstrated ability, or requires a license, permit, hazardous-material response, confined-space entry, or specialized trade. Work indoors and outdoors in varying temperatures and weather and around loading areas, traffic, dust, noise, cleaning products, moving equipment, warehouses, schools, and other facilities while following required protective measures.